Weather on October 21
Vista, CA
55 Years of Data
Avg High
75°F
Avg Low
57°F
Warmest
2003
75°F avg
Coldest
1975
60°F avg
About This Date
October 21st in Vista, CA typically brings pleasant fall weather, with average highs around 75°F and lows near 57°F. Over 54 years of records, the warmest October 21st was in 2003 (75°F average), while the coldest was 1975 (60°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 11% of October 21st dates historically. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Vista, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 54° | 63° | — | — |
| 2024 | 76° | 56° | 66° | — | — |
| 2023 | 77° | 62° | 70° | — | — |
| 2022 | 72° | 62° | 67° | — | — |
| 2021 | 69° | 52° | 60° | — | — |
| 2020 | 71° | 62° | 67° | — | — |
| 2019 | 89° | 61° | 75° | — | — |
| 2018 | 73° | 57° | 65° | — | — |
| 2017 | 72° | 57° | 64° | — | — |
| 2016 | 86° | 63° | 74° | — | — |
| 2015 | 74° | 62° | 68° | — | — |
| 2014 | 73° | 64° | 69° | — | — |
| 2013 | 68° | 53° | 61° | — | — |
| 2012 | 70° | 63° | 66° | 0.25" | — |
| 2011 | 66° | 60° | 63° | — | — |
| 2010 | 67° | 62° | 64° | 0.1" | — |
| 2009 | 73° | 55° | 64° | — | — |
| 2008 | 70° | 54° | 62° | — | — |
| 2007 | 86° | 54° | 70° | — | — |
| 2006 | 74° | 53° | 63° | — | — |
| 2005 | 68° | 61° | 64° | — | — |
| 2004 | 64° | 55° | 60° | 0.23" | — |
| 2003warmest | 87° | 63° | 75° | — | — |
| 2002 | 65° | 59° | 62° | — | — |
| 2001 | 67° | 59° | 63° | — | — |
| 2000 | 68° | 58° | 63° | 0.08" | — |
| 1999 | 86° | 60° | 73° | — | — |
| 1998 | 69° | 56° | 62° | — | — |
| 1997 | 72° | 53° | 62° | — | — |
| 1996 | 77° | 50° | 64° | — | — |
| 1995 | 75° | 59° | 67° | — | — |
| 1994 | 78° | 50° | 64° | — | — |
| 1993 | 87° | 54° | 70° | — | — |
| 1992 | 72° | 60° | 66° | — | — |
| 1991 | 74° | 62° | 68° | — | — |
| 1990 | 87° | 53° | 70° | — | — |
| 1989 | 71° | 59° | 65° | — | — |
| 1988 | 74° | 61° | 67° | — | — |
| 1987 | 79° | 56° | 67° | — | — |
| 1986 | 82° | 50° | 66° | — | — |
| 1985 | 69° | 57° | 63° | — | — |
| 1984 | 73° | 50° | 62° | — | — |
| 1983 | 83° | 55° | 69° | — | — |
| 1982 | 82° | 52° | 67° | — | — |
| 1981 | 76° | 52° | 64° | — | — |
| 1980 | 88° | 55° | 71° | — | — |
| 1979 | 73° | 53° | 63° | 0.05" | — |
| 1978 | 75° | 57° | 66° | — | — |
| 1977 | 71° | 56° | 63° | — | — |
| 1976 | 75° | 62° | 69° | — | — |
| 1975coldest | 71° | 49° | 60° | — | — |
| 1974 | 72° | 57° | 64° | — | — |
| 1972 | 71° | 50° | 61° | 0.03" | — |
| 1971 | 78° | 46° | 62° | — | — |
54 years of data from CARLSBAD MCCLELLAN PALOMAR AP